Front sight for revolvers.



No. 7|5,223. Pmnted Dec. 2, |902.

' n. B. wEssoN.

FRONT SIGHT FOR REVOLVEBS.

(Application tiled May 10, 1902.)

(No Model.)

Unirse STATES f DANIEL B. WESSON, OF SPRINGFIELD, MASSACHUSETTS.

FRONT SIGHT FOR REVOLVERS.

SPECIFICATION forming part of Letters Patent No. 715,223, dated December2, 1902.

Application filed May 10, 1902. Serial No. 106,741. (No model.)

To o'fZZ whom, it may concern.:

Beit known that I,-DAN1ELB. Wasson, a citizen of the United States ofAmerica, residing at Springfield, in the county of Hampden and State of`Massachusetts, have invented new and useful Improvements in Front Sightsfor Revolvers, of which the following is a specification.

This invention relates to firearms, and particularly to the constructionof the front sight therefor, the object of the invention being toprovide a vertically-adjustable front sight for firearms which may beeasily adjusted up or down to properly sight the arm and which may belocked securely in its adjusted position, all of the parts of the sightbeing so constructed as to give it a compact appearance with a smoothexterior.

Referring to the drawings in this application, Figure l is a side'elevation of a sight constructed according to my invention, aportion ofthe barrel on which it is mounted being shown. Fig. 2 is a sectionalplan View of the same on line 2 2, Fig. l. Fig. 3 is a cross-section online 3 3, Fig. l; and Fig. 4. is a perspective view with the side platesof the sight removed. Fig. 5 is a perspective view of the side plate.

For the sake of clearness the parts of the sight have been considerablyenlarged.

In carrying out my invention I provide a block et as a base for thesight, which may be mounted upon the barrel b and secured thereon in anysuitable way, or, as shown in Fig. 3 of the drawings, it may form anintegral part of the barrel. In this block d there is located alongitudinally-disposed recess extending from the upper surface thereofthrough the block and is located substantially midway between the sidesand the ends thereof and adapted to receive the blade c, whichconstitutes the sight.7 The rear edge of this sight is, as usual in thistype, higher than the front edge, and the upper edge thereof is beveled.Near the lower edge thereof a slot cl is cut therethrough parallel withthe axis of the barrel, or substantially so. From one' border of therecess which receives the sight the block a is cut away and a side platee (shown in Fig. 5) is fitted into this side of the block. The thicknessof the blade c is somewhat greater than the width of the reend of whichbut ill adapts them for the use f* @Brion cess in which it is located,and the side plate e is, bymeans of the screws f, clamped against theside of the plate c with sufiicient force to bind the latter tightly inany adjusted position to which it may be set. "In the side plate ethereis mounted a revoluble disk g, which lies in a recess countersunk on theinner surface of the plate, and attached to or forming part of this diskis a smaller disk or head h, which projects through the outer surface ofthe plate, this head being slotted to receive a screw-driver. Mountedupon the edge of the disk g there is a crank- 6 pin t', parallel withthe axis of said disk, which crank-pin enters the slot cl in the lowerportion of the sight. The center of the disk g lies substantially overthe center of this horizontal slot d, and it follows that as this disk gis turned to the right or tothe left (assuming the parts to be in theposition shown in Fig. 3) the crank-pin i, bearing against the upperedge of the said slot, will elevate the sight, it being of courseunderstood that the screws f have been loosened sufficiently to permitits movement. By reversing the movement of the disk g the sight may bedepressed.

When the proper adjustmenthas been made, 8 the screws f may be tightenedand the sight clamped between one side of the recess 4in which it islocated and said plate e.

The heads of the screws f are all counter-Y sunk substantially flushwith the sides of the 8 y block a, as is also the head h, the plate ealso being let in flush with the side of the block a.

The sight thus constructed presents a smooth exterior, to the end thatwhether mounted upon the muzzle of a pistol 0r gunl barrel it presentsno projecting part-s on which anything may catch. It may be readilyadjusted and so lsecurely locked in its adjusted position that it willstand quite a blow Without being thrown out of adjustment. It is a sightwhich is particularly well adapted! to revolvers, the construction ofthe breechof a rear sight.

Having thus described my invention, what I claim, and desire to secureby LettersPatent of the United States, is-

An adjustable sight for firearms consisting of a base having a recesscut in one side thereof; a. blade constituting the sight proper losaidsight in which said pin is located where-4 ated in said recess, thethickness of which by the eccentric rotation of the pin may ef- 1o isgreater than the depth of said recess; a feet the vertical adjustment ofsaid sight. side plate and means for securiuff it to the i base againstthe side of the sighzt` to clamp I DANIEL B' WESSON the latter in thebase; an eccentrically-sup- Witnesses:

ported revolubie crank-pin mounted in said WM. H. CHAPIN,

side plate, there being a horizontal slot in K. I. CLEMONS.

